Dahlia × hortensis
- Common name(s): Garden Dahlia
- Blooming time: summer to fall
- Blooming colors: yellow, orange, pink, red, white, multicolored
- Height: 30 to 130 cm
- Origin: the parent species are native to Central and South America
- Hardiness zone (USDA): Z10 – up to 4 °C
- Family: Asteraceae